Zobrazeno 1 - 10
of 66
pro vyhledávání: '"R K, Jensen"'
Autor:
Arup Gangopadhyay, R. K. Jensen, Mary E. Graham, Hong Gao, Dairene Uy, R. T. Stockwell, Ann E. O'Neill, Cory B. Phillips, S. J. Simko, Roscoe O. Carter
Publikováno v:
Lubrication Science. 20:163-180
Poisoning by phosphorus in engine oil limits the useful life of automotive catalysts. The amount of phosphorus in engine oil has been decreasing for over a decade, and currently is limited to 0.08 wt% maximum. The source of phosphorus in engine oil i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b7573efab17b45e5227530407a1967c
https://doi.org/10.1002/ls.54
https://doi.org/10.1002/ls.54
Publikováno v:
Tribology International. 38:289-297
Friction and wear characteristics of low viscosity SAE 5W-20 engine oils containing different amounts of phosphorus were studied using two different test devices. One was a laboratory high frequency reciprocating rig (HFRR) testing new and used oils
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c4aa54fee509036171637d562495179
https://doi.org/10.1016/j.triboint.2004.08.019
https://doi.org/10.1016/j.triboint.2004.08.019
Autor:
R. K. Jensen
Publikováno v:
Lubrication Science. 17:147-162
In advanced fuel-efficient engine oils containing molybdenum dialkyldithiocarbamate, Mo(dtc)2, as a friction-reducing additive, the friction-reducing capability is gradually depleted with mileage accumulation and is dependent on the presence of other
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4869c5afed4491155246b8efb0cbf4e
https://doi.org/10.1002/ls.3010170203
https://doi.org/10.1002/ls.3010170203
Publikováno v:
Tribology Transactions. 47:200-207
Phosphorus is present in engine oils in the form of the antiwear and antioxidation additive zinc dialkyldithiophosphate (ZDDP). Its effects on wear and friction were studied at different temperatures using a high-frequency reciprocating rig (HFRR). T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab438985b329e352d9954317609342ae
https://doi.org/10.1080/05698190490431885
https://doi.org/10.1080/05698190490431885
Publikováno v:
Tribotest. 9:197-207
The assessment of engine oil useful life is an important step in the development of future low-phosphorus, catalyst-compatible, and long-drain engine oils. This paper describes the development and application of a new laboratory screening test, the F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbe55f1b88153950cd0e5171a982b113
https://doi.org/10.1002/tt.3020090303
https://doi.org/10.1002/tt.3020090303
Publikováno v:
Lubrication Science. 14:25-42
The ligand-exchange reactions between molybdenum dialkyldithiocarbamate, Mo(dtc)2, and zinc dialkyldithiophosphate, Zn(dtp)2, have been investigated during inhibited oxidation in a model hydrocarbon (hexadecane) and in a series of Group I–IV base o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b1638d9f8cf6ec588476500fd4c2fc9
https://doi.org/10.1002/ls.3010140103
https://doi.org/10.1002/ls.3010140103
Publikováno v:
Tribotest. 7:187-201
Improvement of engine fuel efficiency is one of the most important goals of current automotive development. Maximising the contribution of engine oils to fuel efficiency is a very important part of this process. Engine friction modelling, based on fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cc187a52a7a7435fcba506b43719a7a
https://doi.org/10.1002/tt.3020070302
https://doi.org/10.1002/tt.3020070302
Publikováno v:
Tribology Transactions. 44:637-647
Presented as a Society of Tribologists and Lubrication Engineers Paper at the STLE/ASME Tribology Conference in San Francisco, CA October 21–24, 2001
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c75e5a212cc0fba9416b141cad05954
https://doi.org/10.1080/10402000108982505
https://doi.org/10.1080/10402000108982505
Publikováno v:
Industrial Lubrication and Tribology. 52:209-220
During the first decades of the next millennium, automobile manufacturers will strive to achieve, in the USA, another twofold increase in energy efficiency and tenfold reduction in emission levels. On the way to achieving these goals, automobile manu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc69ce157ec256f7745ca05e5d5983d1
https://doi.org/10.1108/00368790010373175
https://doi.org/10.1108/00368790010373175
Publikováno v:
Lubrication Science. 10:99-120
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de504f408e30896208cbd532139a562f
https://doi.org/10.1002/ls.3010100202
https://doi.org/10.1002/ls.3010100202